131003320 has 32 divisors (see below), whose sum is σ = 336866400. Its totient is φ = 44915328.

The previous prime is 131003311. The next prime is 131003321. The reversal of 131003320 is 23300131.

It is a self number, because there is not a number n which added to its sum of digits gives 131003320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131003321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233655 + ... + 234214.

It is an arithmetic number, because the mean of its divisors is an integer number (10527075).

Almost surely, 2^131003320 is an apocalyptic number.

131003320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131003320 is an abundant number, since it is smaller than the sum of its proper divisors (205863080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131003320 is a wasteful number, since it uses less digits than its factorization.

131003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467887 (or 467883 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 131003320 is about 11445.6681762141. The cubic root of 131003320 is about 507.8795982249.

Adding to 131003320 its reverse (23300131), we get a palindrome (154303451).

The spelling of 131003320 in words is "one hundred thirty-one million, three thousand, three hundred twenty".